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Recognised as Colour

#673F45

  • #673F45
  • Red
  • Dark
  • Nearest: Dim grey

#673F45 is a red with RGB values 103, 63, 69 and HSL 351°, 24%, 33%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#673F45#673F45
HEX#673F45
RGBrgb(103, 63, 69)
RGB (0–1)0.4039, 0.2471, 0.2706
RGB percentages40.4%, 24.7%, 27.1%
HSLhsl(351, 24.1%, 32.5%)
HSV / HSBhsv(351, 38.8%, 40.4%)
CMYK0%, 38.8%, 33%, 59.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,766,405
CSS custom property--colour: #673F45;

Brightness & contrast

Relative luminance0.06868WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.85:1
Contrast with white8.85:1WCAG normal text: AAA
Contrast with black2.37:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#98C0BA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#464645no red cones; affects about 1% of men; ΔE 18.9 from the original
Deuteranopia#4F4D44no green cones; the most common form, about 1% of men; ΔE 19.5 from the original
Tritanopia#6E3B41no blue cones; rare, and affects men and women equally; ΔE 5.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.85:1WCAG large text: AAA
Contrast with black, large text2.37:1WCAG large text: Fail

Named colours

Dim grey · ΔE 22.7Gray · ΔE 28.9Dark slate grey · ΔE 31Rosy brown · ΔE 32.3Slate grey · ΔE 32.8Light slate grey · ΔE 35.2
Nearest named CSS colourDim grey (#696969)ΔE 22.74, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3F6761
Analogous#673F59, #674D3F
Triadic#45673F, #3F4567
Split complementary#3F674D, #3F5967
Tetradic#59673F, #3F6761, #4D3F67

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CAA8AD
Lighter +30%#B7888F
Lighter +20%#A36972
Lighter +10%#87525A
Darker −10%#472C30
Darker −20%#28181B
Darker −30%#080505
Darker −40%#000000
More saturated +25%#7C2A36
Less saturated −25%#535353

Channel breakdown

R103
G63
B69
Red103 (40.4%)
Green63 (24.7%)
Blue69 (27.1%)
Hue351°
Saturation (HSL)24.1%
Lightness32.55%
Dominant channelRed
Hex per channelR 67 · G 3F · B 45

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Every value on this page was computed from “673f45” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.